Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Current Conservation of current Batteries Resistance and resistivity Simple.

Slides:



Advertisements
Similar presentations
Capacitance and Dielectrics
Advertisements

© 2012 Pearson Education, Inc. The two conductors a and b are insulated from each other, forming a capacitor. You increase the charge on a to +2Q and increase.
Unit 2 Day 3: Electric Energy Storage Electric potential energy stored between capacitor plates Work done to add charge to the capacitor plates Energy.
Copyright © 2009 Pearson Education, Inc. Dielectrics.
© 2005 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their.
Chapter 17 Electric Potential.
Copyright © 2010 Pearson Education, Inc. Lecture Outline Chapter 20 Physics, 4 th Edition James S. Walker.
Copyright © 2008 Pearson Education Inc., publishing as Pearson Addison-Wesley PowerPoint ® Lectures for University Physics, Twelfth Edition – Hugh D. Young.
17-7 Capacitance A device that stores electric charge Two plates that are separated by an insulator Used in electronic circuits Store charge that can later.
UNIT 9 Electrostatics and Currents 1. Tuesday March 20 th 2 Electrostatics and Currents.
1 Capacitance and Dielectrics Chapter 27 Physics chapter 27.
Copyright © 2012 Pearson Education Inc. PowerPoint ® Lectures for University Physics, Thirteenth Edition – Hugh D. Young and Roger A. Freedman Lectures.
Chapter 23 Circuits Topics: Sample question:
Current and Resistance
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Current Conservation of current Batteries Resistance and resistivity Simple.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Current Conservation of current Batteries Resistance and resistivity Simple.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Current Conservation of current Batteries Resistance and resistivity Simple.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Chapter.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Current Conservation of current Batteries Resistance and resistivity Simple.
Copyright © 2009 Pearson Education, Inc. Lecture 5 - Capacitance Capacitors & Dielectrics.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Chapter.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Current Conservation of current Batteries Resistance and resistivity Simple.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Chapter.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Chapter.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Chapter.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Current Conservation of current Batteries Resistance and resistivity Simple.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Chapter.
Capacitors Consider two large metal plates which are parallel to each other and separated by a distance small compared with their width. Area A The field.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Chapter.
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley Electricity Physics 102 Goderya Chapter(s): 22 and 23 Learning Outcomes:
Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley. Chapter 30. Potential and Field To understand the production of electricity.
Chapter 22 Current and Resistance. Current Conservation of current Batteries Resistance and resistivity Simple circuits Chapter 22 Current and Resistance.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Conservation of energy Work and Delta PE Electric potential energy Electric.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Capacitors.
Electric Potential. Electrostatic Potential Energy and Potential Difference The electrostatic force is conservative – potential energy can be defined.
Chapter 17 Electric Potential. Objectives: The students will be able to: Given the dimensions, distance between the plates, and the dielectric constant.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric energy (Electric Potential Energy) Electric potential Gravitation.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Capacitors.
Announcements  EXAM II TOMORROW!!  NO New Homework 31.24: 55 Ω 31.45: 31.46: 60 V  Office hours… MW 12:30-1:30 pm TR 9-10 am F 1-2 pm  Tutorial Learning.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Capacitors.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Chapter.
Chapter 18.2 Review Capacitance and Potential. 1. A 5 μF capacitor is connected to a 12 volt battery. What is the potential difference across the plates.
Copyright © 2011 Pearson Education, Inc. Publishing as Pearson Addison-Wesley. Chapter 4 Applications of the Derivative.
Copyright © 2011 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Chapter 1 Functions.
GENERAL PHYSICS LECTURE Chapter 26 CAPACITANCE AND DIELECTRICS Nguyễn Thị Ngọc Nữ PhD: Nguyễn Thị Ngọc Nữ.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Current Conservation of current Batteries Resistance and resistivity Simple.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Chapter.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Current Conservation of current Batteries Resistance and resistivity Simple.
Chapter 24 Capacitance, Dielectrics, Energy Storage.
111/16/2015 ELECTRICITY AND MAGNETISM Phy 220 Chapter 4: Capacitors.
Capacitance, Dielectrics, Energy Storage
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Dot Product Review of Energy Model from Physics 1 Conservation of energy.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric energy (Electric Potential Energy) Electric potential Gravitation.
Capacitance Physics Montwood High School R. Casao.
Chapter 23 Electric Potential. Basics The potential due to an electric dipole is just the sum of the potentials due to each charge, and can be calculated.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Electric potential energy Electric potential Conservation of energy Equipotential.
Copyright © 2009 Pearson Education, Inc. Dielectrics.
Chapter 21 Electric Potential Topics: Sample question:
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Conservation of energy Work and Delta PE Electric potential energy Electric.
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Chapter 18 Electric Energy and Current Chapter 18.
Physics 102: Lecture 4, Slide 1 Capacitors (& batteries) Physics 102: Lecture 04.
Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Conservation of energy Work and Delta PE Electric potential energy Electric.
Chapter 20 Electric Potential and Electric Potential Energy.
I Chapter 25 Electric Currents and Resistance. I Problem (II) A 0.50μF and a 0.80 μF capacitor are connected in series to a 9.0-V battery. Calculate.
Capacitance. Device that stores electric charge. Construction: A capacitor is two conducting plates separated by a finite distance Typically separated.
Review: Kirchoff’s Rules Activity 13C Achieved level: Qn. 1; Merit: Qn. 2, 3, 4, 5, 6 Excellence: Qn. 3 d, 6 b) iv. Challenge Problem on paper at the front.
How to Use This Presentation
Section 1 Electric Potential
How much work must be done to bring three electrons from a great distance apart to within m from one another?
Electric Energy and Current
Presentation transcript:

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Current Conservation of current Batteries Resistance and resistivity Simple circuits Chapter 22 Current and Resistance Topics: Sample question: How can the measurement of an electric current passed through a person’s body allow a determination of the percentage body fat? Slide 22-1

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Derive Capacitance of parallel plate capacitor Slide Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley.

Capacitors Slide Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Note: Battery is a source of constant potential What happens when you pull the plates of a capacitor apart? With a Battery connected With no Battery connected Do the following quantities (a) increase, (b) decrease, or (c) remain the same: Charge E-Field Delta V

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. E field inside a dielectric A dielectric material cannot completely shield its interior from an external electric field, but it does decrease the field. Dielectric Constant κ

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Dielectric Constant With a dielectric between its plates, the capacitance of a parallel-plate capacitor is increased by a factor of the dielectric constant κ: Dielectric strength is the maximum field a dielectric can experience without breaking down.

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Energy Implications of Dielectrics Slide Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley.

Capacitors and Capacitance (Key Equations) Slide Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Capacitance C = |Q| / |Delta V| Property of the conductors and the dielectric Special Case - Parallel Plate Capacitor C = Kappa * Epsilon 0 *A / d Energy Pe e = 1/2 |Q| |Delta V| |Delta V| = Ed

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Uses of capacitors Slide Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Energy Storage Computers/Calculators that maintain memory when batteries are changes Short bursts of energy Camera Flash Difibrilator Short burst high energy experiments Electronic Timing (Analog)

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Reading Quiz 1.The charge carriers in metals are A. electrons B. positrons C. protons D. a mix of protons and electrons Slide 22-2

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Definition of a Current Slide 22-9

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Properties of a Current Slide 22-8

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Simple Circuits The current is determined by the potential difference and the resistance of the wire: Slide I = ∆ V chem R _____

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Light the Bulb Slide Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Can you light a bulb when you have 1 battery 1 Bulb 1 wire A - yes B - no

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Circuit Models for batteries and current Slide Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. These two pairs of possibilities give us four possible models. Battery current outputCurrent character Model 1constant, independent of circuitused up in circuit Model 2constant, independent of circuitconserved Model 3depends on what is in the circuitused up in circuit Model 4depends on what is in the circuitconserved

Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley. Tutorial 1 Slide Copyright © 2007, Pearson Education, Inc., Publishing as Pearson Addison-Wesley.